Finding the Fourth Proportional to 1,509,139,102.52, 2,263,954,353.11 and 445,669,518.80
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Solution
The fourth proportional to 1,509,139,102.52, 2,263,954,353.11 and 445,669,518.80 is: 668,576,836.59
Step by Step Solution
- Step 1: Write the proportion equation
1,509,139,102.52 : 2,263,954,353.11 = 445,669,518.80 : x - Step 2: Convert to fraction form
1,509,139,102.52/2,263,954,353.11 = 445,669,518.80/x - Step 3: Cross multiply
1,509,139,102.52x = 2,263,954,353.11 × 445,669,518.80 - Step 4: Simplify right side
1,509,139,102.52x = 1,008,975,447,135,699,072 - Step 5: Solve for x
x = 1,008,975,447,135,699,072/1,509,139,102.52 - Step 6: Final answer
x = 668,576,836.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.